公开(公告)号：US20150285212A1

公开(公告)日：2015-10-08

申请号：US14680456

申请日：2015-04-07

Applicant: University of Manitoba

Inventor： Nan Wu ,  Quan Wang ,  Xiangdong Xie

IPC: F03B13/20 ,  H02N2/18

CPC classification number: F03B13/20 ,  F05B2220/709 ,  H01L41/1136 ,  H02N2/18 ,  Y02E10/38

Abstract: An expedient piezoelectric coupled buoy energy harvester from ocean waves is developed. The harvester is made of several piezoelectric coupled cantilevers attached to a floating buoy structure, which can be easily suspended in the intermediate and deep ocean for energy harvesting. In the buoy structure, a slender cylindrical floater is attached on a large sinker. The energy harvesting process is realized by converting the transverse ocean wave energy to the electrical energy via the piezoelectric patches mounted on the cantilevers fixed on the buoy. A smart design of the buoy structure is developed to increase the energy harvesting efficiency by investigation of the effects of the sizes of the floater and the sinker. A numerical model is presented to calculate the generated electric power from buoy energy harvester. The research findings show that up to 22 W electric power can be generated by the proposed expedient buoy harvester with the length of the piezoelectric cantilevers of 1 m and the total length of the buoy of 12 m. The technique proposed in this research can provide an expedient, feasible and stable energy supply from the floating buoy structure.

Abstract translation: 开发了一种来自海浪的便利的压电耦合浮标能量收集器。 收割机由几个压电耦合悬臂组成，悬臂悬挂在浮动浮标结构上，可以很容易地悬挂在中间和深海中进行能量收集。 在浮标结构中，细长的圆柱形浮子附着在大沉降片上。 能量收集过程通过将固定在浮标上的悬臂上安装的压电贴片转换成横向海浪能量到电能来实现。 开发了浮标结构的智能设计，通过研究浮子和沉降片尺寸的影响来提高能量收集效率。 提出了一种数值模型来计算浮标能量收集器产生的电力。 研究结果表明，由压电悬臂长度为1米，浮标总长度为12米的方便式浮筒式收割机可以产生高达22瓦的电力。 本研究提出的技术可以提供浮动浮标结构的方便，可行和稳定的能源供应。

公开(公告)号：US09726143B2

公开(公告)日：2017-08-08

申请号：US14680456

申请日：2015-04-07

Applicant: University of Manitoba

Inventor： Nan Wu ,  Quan Wang ,  Xiangdong Xie

IPC: H01L41/113 ,  H02N2/18 ,  F03B13/20

CPC classification number: F03B13/20 ,  F05B2220/709 ,  H01L41/1136 ,  H02N2/18 ,  Y02E10/38

Abstract: An expedient piezoelectric coupled buoy energy harvester from ocean waves is developed. The harvester is made of several piezoelectric coupled cantilevers attached to a floating buoy structure, which can be easily suspended in the intermediate and deep ocean for energy harvesting. In the buoy structure, a slender cylindrical floater is attached on a large sinker. The energy harvesting process is realized by converting the transverse ocean wave energy to the electrical energy via the piezoelectric patches mounted on the cantilevers fixed on the buoy. A smart design of the buoy structure is developed to increase the energy harvesting efficiency by investigation of the effects of the sizes of the floater and the sinker. A numerical model is presented to calculate the generated electric power from buoy energy harvester. The research findings show that up to 22 W electric power can be generated by the proposed expedient buoy harvester with the length of the piezoelectric cantilevers of 1 m and the total length of the buoy of 12 m. The technique proposed in this research can provide an expedient, feasible and stable energy supply from the floating buoy structure.